Combustion of a Liquid Metal from a Wick
Interim technical rept. Sep 1973-Feb 1977
PENNSYLVANIA STATE UNIV STATE COLLEGE DEPT OF MECHANICAL ENGINEERING
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An experimental and analytical study of laminar, free-convective combustion of a liquid metal from a wick was performed, using lithium and sulfur hexafluoride as the reactant combination. Observations of the combustion process indicate a vapor-phase reaction with products condensing on the fuel surface and in the vapor phase, but not in the flame. Data were obtained for the lithium burning rate in sulfur hexafluoride as a function of wick length, ambient pressure, and concentration of inert diluent in the ambient gas. Data were also obtained for the relationship between wick surface temperature and ambient pressure. Two theoretical models using a film-theory approximation were developed. The effect of natural convection shown by the variation of burning rate with wick length is well described by the approach developed by Spalding.
- Fluid Mechanics
- Combustion and Ignition